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Yes. To the new polyurethane applicator, transfer pumps can be confusing. Because they have so many names including; foam pump, barrel pump, drum pump, or fluid displacement pump - sometimes this can lead to confusion. When dealing with industrial materials and high/low pressure hoses, it is important to have an industrial transfer pump, such as the ones made by PMC and IPM. Having the wrong pump can cause you to waste time and money by wasting material and getting an inconsistent application.
Gear Pumps: A gear pump is a type of positive displacement pump. Gear pumps move fluid repeatedly, enclosing a fixed volume using interlocking gears and transferring it mechanically using a cyclic pumping action. Gear pumps are not new and have been around for hundreds of years.
Piston Pumps: Piston pumps are positive-displacement pumps that use a piston and plunger to displace and pressurize fluids. Either single or double acting, piston pumps operate by using the force of the pumping mechanism to expand and contract an internal movable volume of liquid.